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2 questions...muffler...gas

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Sal

02-07-2001 18:18:19




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Hello and thank you for your help in advance.

First, any thoughts on running the exhaust up the side rather than out the back? I know it's not the way it was designed, but I have seen some this way and it seems to be better than breathing in the fumes while hooking up the trailer and such.

Second, should I use a lead additive in my fuel? I have read information that says yes and others that say no...plus I have heard it depends on the type of rings you have in...could someone help me out on this...

Thanks again.

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Al English

02-08-2001 07:42:53




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
So far no one has mentioned the aerodynamic benifits of getting the exhaust stack out of the air stream. Ok..... sorry I mentioned it...Al English



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bj/8N/mt

02-08-2001 12:21:03




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 Re: Re: 2 questions...muffler...gas in reply to Al English, 02-08-2001 07:42:53  
wish I could remember how to spell Bernulli

any how he was the guy who proved that you get a mild suction effect if you run a column of air perpendicular to an orfice.

therefore, if you put the stack verticle and drive fast enough you ought to get a measurable reduction in exhaust back pressure--grin



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Old George

02-08-2001 04:55:05




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
Everyone so far has made some good points, it kinda comes down to whatever you prefer with the muffler. I am surprised our safety guru has not mentioned this, and most all of us have broken the rule, but you really should shut it down if you are getting out from behind the steering wheel. As for the lead, I don't think you need it. A short time ago, bg linked an article about lead. Though I am a little skeptical of the source it was some interesting reading. I will include a link below. My $.02

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PAUL8N

02-08-2001 04:38:25




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
I LIKE MY EXHAUST DOWN BELOW, GIVES HER A LITTLE RUMBLE OUT THE BACK. I ALSO BELIEVE "IF I'M OFF THE TRACTOR, THAT THE TRACTOR IS OFF." EVEN WITH MY TIGHT AND RIGHT 6V. I GUESS I JUST LIKE HITTING THE STARTER BUTTON. IT STARTS AS WELL AS MY NEW TRUCK. HUMM, CAN YOU PUT A REMOTE STARTER ON A 6V TRACTOR. SURE LIKE THE ONE I HAVE ON MY TRUCK. MY .01 WORTH, PAUL



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Steve W

02-08-2001 03:42:39




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
I got a plain old outturned exhaust end at PEP Boys, and crimped it onto the exhaust pipe under my tractor, slightly turned out to divert the exhaust sideways and down. It's only a problem when hooking up in the barn, but so would any exhaust. I shut her off for that.

Take Care
Steve



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Al Amstutz

02-08-2001 03:12:52




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
As for the muffler question I changed mine to an upper pipe to avoid the risk of starting a brush fire. the exhaust does not bother me.
The gas issue, as you can see is a split decision.
I use lead substitute. I have heard of those who
use Marvel Mystery oil in place of lead and even
one (good mechanic) who added a bit of diesel fuel
to the gas for upper lubricant. And, many who say
forget it.
So - you can't go wrong here.
Al

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younganddumb

02-07-2001 21:28:22




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
I run a vertical exhaust mainly due to the fact that I was constantly ripping the stock muffler off when brushhoggin. Also they are cheap,around $23 and they look more like a modern tractor.I do have to watch for the low hanging branches which I cut off as soon as possible(it gives my property a more park like look).Look in the archives about the lead in gas question. I seem to remember that some of the n's had hardened exhaust seats.HTH

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Steve(CO)

02-07-2001 21:21:35




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
I (and some other 60's vintage high performance car owning friends of mine) found that the lead additives just foul plugs quickly. I've not used the stuff in at least 10 years and have had no problems whatsoever with valve seats.



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Bill (in Colo)

02-07-2001 20:15:18




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
Exhaust...
--Out top == Loud,catches on things, and can fill
----- ----- -manifold w/rain water w/o flip-cap.
--Out bottom == hot dry grass fires and 3-pt fumes

Unleaded Gas...
--Main issue is the valve seats. I have been told
that older cars had steep valve seats, forming a tight and good seal when the valve wedged-in, and high-compression engines loved it.
But, galling occurred w/o the lead deposits to lubricate them during each wedging closed.
Since the 70s, valve seats are normally cut
differently, and more durable seat materials have
been used - thus, good durability w/o leaded gas.

I don't think that rings were thought to suffer because of the lack of the lead deposits.

I suspect that, like most old tractor owners,
you will find that no-lead will work just fine.

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duane

02-07-2001 19:27:03




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
MY MUFFLER goes up and it catchs on every low hanging branch and belches fumes in my face.
as soon as I can I'm going to NH and purchaseing new manifold and stock exaust for less than a $100. as for gas I'm told that they all have hardend valve seats; so does not require lead in the gas.



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JimNC

02-07-2001 18:30:36




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 Re: 2 questions...muffler...gas in reply to Sal, 02-07-2001 18:18:19  
I think it is a matter of preference for both questions. Dad had his muffler down below and never got it tore off bushhoggin' or runnin' through the woods. Mines going up, with a rain cap of course. I like it better that way.

As for the additive. The N I got from dad ran 20+ years with reg.unleaded gas, and I might add worked HARD. I read all the posts about it to and have not seen any real answer either way.

Sorry I couldn't help more

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Sal

02-07-2001 20:37:27




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 Re: Re: 2 questions...muffler...gas in reply to JimNC, 02-07-2001 18:30:36  
Looks like unleaded gas is fine then and there is no need to put in a lead additive.

As for exhaust, there are some good points both ways...I would still like to hear from others on this and what they think.

Thanks.



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